Acid regenerator



J. I. THOMPSON. .ACID REGENERATOR.

APPLICATION FILED AUG. 4. I919.

1,402, 194, Patented Jan. 3, 1922.

3 SHEETS-SHEET I.

J. I. THUMPSON.

ACID REGENERATUR.

APPLICATION FILED AUG I919.

Patented Jan. 3, 1922 3 SHEETSSHEET 2 J. I. THOMPSON.

ACID REGENERATOR.

APPLICATION FILED we 4. 1919.

1,402,194. Patented Jan. 3, 1922.

| I l l I 1 I I x 5 4 Ida?" uurrae 's'mrss mm crrics.

JOE I. THOHPBON,OF PITlSBUEG-H, PINNBYLVAHIA, ASSIGNQB TO THE KOPIERS COMM, PITTSBURGH, PENNSYLVANIA, A. CORPORATION O! m'NSYLVANIA.

AGE) catamaran.

Incantation otpetters Intent;

Patented Jan. 8, 1922.

Applicaflon Miami; 4, no. Serial No. swan.

To all whom it may concern:

Be it known that L-Jorm I. Tnoairsou, a citizen of the United States, residing in Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Acid Regenerators, of which the following is a specification.

This invention relates generally to a dumpiu receptacle. apparatus, and has one especial y valuable up lication as anaeid regenerator of a beam recovery plant. It

will be understood, however, thatthe inven- 7 tion is capable of other valuable applications than thcspecific 'use herementioned and described in theensulng specification.

A highly important object of the invention is the prov sion of a dumping receptacle apparatus aving a fixed cover and a receptacle mounted beneath and movable toward and from said l ixedcover. This novel construction permits the connection of relatively fixed supply and exhaust means with the fixed cover and conse neatly enables dumping of the receptacle wi out thenecessity of disturbing the sup laoand exhaust means leading toward and m the fixed cover of the receptacle. When utilized as an acid regenerator for benzol reeov plants, a dumping receptacle apparatus having time characteristics permits ready, nick and easy removal of the refuse from t e receptacle, without detaching the fluid conducting connections, thereby attainiug a much less inorious dumping: operation and also redueing the leakage of vapors about the plant.

Heretoforc, in benzol recovery plants,-

relatively fixed acid regencrators have been employed for regenerating or recovering the acid from the sludge discharged from the agitator. When the recovery of the acid has been efiected in the iegenerutor, there remains a disngroeably odorous spongy refuse material in the bottom of the regenerl ntor. which prior to this invention has been the laborious expedient of digging it out from the bottom of the regenerutor with a spade. This cleansing operation is invariably one of a very disagreeable naturc, owing to the characteristics of the ref- Use material and the necessity of having an attendant get down into the regenerator to I'BIIIOH the refuse material. -By the employment of the mascot invention. this disagreeable and laborious cleansing operation is enremoved by of said valve taken tirel'y obviated pad the receptacle of the acid regenerator may be readily cleansed, by simply moving thereceptacle to a dnm'pm i- U01! and raking out the refuse materi mm the receptacle.

With the above and other objects in view, the invention consists in certain novel constructions, arrangements, and combinations of parts herein fter described in a preferred form, as an illustrative example, and er ticularly set forth in the claims at the on of the specification.

In the drawings,

Figure 1 is a sectional elevation of a portion. of a with an acid ratonconstru in accordance witht e resent im rovements;

Fig. 2 l8 s to p an view 0 a. pair of acid regenemtors, i1 ustrating the supply and ex haust means respectively ileading to and from said regencrators;

Fig. 8 is an enlarged top plan view of an regenerator;

Fig. 4 is a vertical sectional elevation of the some;

Fig. 5 is an end the right of Fi 4; o

Fig. 6 is an erfiarged detailed view of the lhtch mechanism;

Fig. 7 is a fragmentary side elevation of said latch mechanism looking from the left of Fig. 6 5

Fi 8 18 a, vertical sectional elevation of the rain'valve, and,

F 9 is a horizontal sectional elevation in a plane indicated by the line 99 of Fi 8.

.In the illustmted embodimcnt of the invention, the dumping receptacle apparatus is especially adapted for use as an acid regenerator for recovering the acid in the sludge discharged from the agitator of a bunzol recovery plant, and for convenience the present inventioinrill be confined to this use of the invention. Features of construction of the dumping rcceptacloupparatus, are, however. readily susceptible to other valuable applications, and it is manifest that the scope of the invention is by no means.confine to the specific application and specific embodiment herein described.

Referring to the drawings, there is shown in Fi l a portion of a bcnzol recovery plant having an agitator ll of any preferred .type. In said agitator, benzol is thoroughly elevation looking from benzol recovery: plantzfiuipped sludge troug alike in construction, and for description will be confined to a single rea, side wall tapering mixed with acid for the urpose of separating the unsaturated h ro-cerbone, chiefly phenols and olefins. These impurities form with the acid a thick bluish sludge on account of its hi h specific grant settles out in the bottom-0% the agitator an is dischar ed through a sludge trough 12 leadjn to t e acid regenerator. If desired, sai sludge trou h 12 may be utilized as a supply main or a pair of regenerators, as shown in Fi '2, and for this purpose the is equipped with a pair of spouts 13 respectively-extending to each unit of the pair of r enerators.

Although it'is e usual practice to employ a series of acid regenerators in a benzol recovery plant, all of the refiner-store are is reason the generator.

In its essentials, the regenerator 15 embodies a fixed lid or cover 16 and a receptacle or pot 17 movable toward and from said fixed cover. As shown in Figs. 8 to 6 inclusive, the cover 16 may be a substantially elliptical plate member 18, on which are mounted two pairs of spaced longitudinally extending angle bars 19, 20, the respective PIlllS being connected and braced lg a. transversely-extending un le bar 21. ach pair of.an in bars is rigi ly secured to supportin p ates 22, 23, and the latter in turn are secured between pairs of channel irons 24, 25 extending longitudinally of and secured beneath transverse beams 26 of the framework structure of the recovery plant. Mounted on the plate member 18 of the fixed cover is a sludge nozzle 27 of any approved construction and communicating wit a regisl'ering openin in said plate member 18. The sludge npzz e is-adapted to be connected with a sludge spout 13 of thesludge trough 12, thereby providing a-meens for'suppl ing sludge to the interior of the receptac e 17 of the acid re enerator. Also mounted on the plate meniber 18 of the fixed cover is a vapor nozzle 28, preferably formed with toward the top and adapted to be connected with a vii or ascension pipe 29, see Figs. 1 and 2, w ich leads to a. vapor collecting main 30-extending along the entire battery of regenerntors in the recovery plant. The lower. end of the vapor nozzle communicates with a register ing opening in the plate member {8, and the vapors from the receptacle or 17 passes through said opening and nozz e Q8 into the ascension pipe 29 and finally through the vapor collecting mein'30 to a suitable con denser, where the wt or may be condensed and any remaining enzol se aratcd from it. If desired, the plate mem er 18 of the fixed cover may also be provided with an inspection hole 31 adapted to be closed by removable cover 32. rcfeiably the fixed which cover is provided with a depending ripheral flange 33101 a urpose which w' 'heremafter appear. a race tacle or pot 17 com uses a suitable met 0 outer shell 34; pre erably of a hopper ecuttlesha conflint-ion, so as to provide 'a meat that is so tantially unrestricted with respect to the interior of the receptacle or vessel, and having a lon graduallyinclined front wall 35, a short re timely-steep rear wall 36' and a dished bottom 37 inclined downwardly toward the front wall 85. The entire interior of the shell is lined with fire brick, or other refractory material, as indicated at 88. The shell 34 is o n atthe to and is preferably formed wit an outwar ly flarin peripheral flange 39 which receivesthe epen'dm'g flange 33 of thefixed cover, when the receptacle, or pot is inoperative relation with res t tosuch fixed cover.

be receptacle or pot is wfulcrumecl on an axis beneath the fixed cover, whereby said rec-e )tacle may be tilted toward and from the xed cover, .and for this purpose there is mounted on the rear wall 36 a pair of transverse! spaced brackets 40, provided with "line holes through which is passed and rigidly secured to said bearing brackets 40 a hollow shaft or pipe 41. The pipe 41 is journaled at its opposite ends in bearings 49. respectively secured between a pair of channel burs 43 of the fixed building-strum ture. With this construction, the entire rcreptucle and pipe 41 may be tilted about a iorizontal axis in the fixed bearings 42.

A means is provided for retaining the receptacle or put in operative relation with lrspect to the fixed cover and for this purmse a manual] -operable latch mechanism is utilized, as i lustrated in detail in Figs. 6 and 7. As shown the opposite sides of the shell 34 of the receptacle are provided with Jrojecting lugs 44 for co-operation with h ends of a pair of transversely spaced latch levers 46 pivoted at the point 47 between a pair of transverse chanhel bars 95 of the fixed frame structure. 'The upper ends of said latch levers 46 are respectivel provided with pivoted blocks 48 in which are threaded, the opposite screw threaded ends 49, 50 of an operating shaft 51. This operating shaft 51 is journaled in a suitable hearing 52 mounted on the channel bars 26 and is provided with hand wheel 53. The screw threaded ends 49, 50 of said shaft 51 are, of op msite pitch, and by turning the hand when] 53 in one direction the pair of lutcli levers 46 may be moved toward each other to shift the books 45 beneath the lugs 44 of the receptacle and to retain the latter in operative relation with res act to the fixed cover. Movement of the and wheel 53 in the opposite direction will shift the books 45 from beneath the lugs 44, permitis respective hooks 45 at the lower casing a mg axial movement cosing 58 to oltlse the valve.

-of said stem 63 is ting the receptacle to be lowered into dumpingv osition.

the receptacle 17 nrevpreferably controlled by a hoist. As shown in Figs. 4 and 7 the opposite side walls of .the receptacle are formed with projecting studs 54, which respectively receive eyes carried by the ower ends of a pair of vertical hoist bars in Fig. 1, and may be elevated and lowered any suitable means to efl'ect elevation and owering movement of the re ce tncle.

1 ounted in the bottom 37 of the receptade is a alve-contnolled drain 5?. This drain is referably constructed of a suitable projected through an openin" in the bottom of the receptacle and securec by bolts 59 to a flange 60 formed on the bottom wall 3? of the receptacle. he casin 58 is provided with an outlet nozzle 61 disposed at an angle with respect to the main portion of th and :ulupted for connection with n suita lc dram pipe 62; as shown in Fig. l. Mounted on a valve stem 63 and locuted at the upper end of the casing 58 is a valve head 64 provided with axial] disposed ribs 65. The valve stem 63 extenr s through 1*. gland 66 to the bottom of said provided with screw threads, as at 68, for engagement with interior threads of an operating nut 69 rotatuf bly mounted in the lower end of the yoke 67. A head 70 is formed on the upper end of the o crating nut and screwed on the lower end thereof is an operating handle 71, the head 70 and handle 71 mutually preventof the operating nut 69. Formed in the valve stem 68 is an axial "2 which receives the inner end of a key 70 mounted in the side of the yoke 67 and projecting laterally inwardly therefrom. The key working the groove 72 prevents rotation of the valve stem 63. while it to move axially as desired.

ve construction a rotathe drain pipe 62. On rotation of the operating handle 71 in the opposite direction the valve head 64 is retracted within the shown in Figs. 1 and 4, the valve=controlled drain is preferably located at approximately the lowermost point of the e hoisting and lowering movements of th .11 is discharged througi located at the bottom of th the casing and within a yoke 67 secured casing. The lower end th receptacle, in order that all of the liquid which settles out in rough the valve casing. Heat for so crating the acid and vc or from the soil matter, in the sludge ischarged into the regencratcr receptacle 17, is conveniently y means of a. steam nozzle 74-. The nozzle 74 projects within the regenerntor rece tacle 17 and is conveniently secured b be ts 75 to a lie e 76 projecting from the ottom wall 37 of t fie receptacle. Con :Ied with the nozzle 74 is a steam hose 7 w to the pipe 41. e pipe 41 may be utilized as a. steam supply pipe through which steam flows from any suitable source of supply to the hose 77 and thence to the steam nozzle 74 which injects steam'into the interior of the regenorator receptacle e general plan of operation of an acid regencrator, as above preferabl constructed, in n benzol recovery plant is t 1e following: The thick bluish slud from the agitutor the sludge trough I2 and slud spout 13 to the sludge supply nozzle 27 o the fixed cover, and the sludge passes through such supply nozzle into the regenemtor receptacle 1 en the e bottomof the receptacle, will drain tools is about two-thirds full, the sludge supagitator of the sludge, the rising vapors pass throng t 1e vapor nozzle 28 and ascension pipe 29 to the vapor collecting main 8!), which carries the vapor to the condenser. After the sludge IS thoroughly boiled to a crisp spongy he steam is shut 0d. The valve-condrain'57 is then opened and the legenerated ucid drained 0 7 through the drhin outlet 61 and d pipe 62. Said drain pipe 62 extends to an acid filter tank 78 through which the acid passes before-it is finally discharged into the acid drain tank 9. hen all the acid is drained from the receptacle 17, the hoist burs 56 are elevated he the weight of the receptacle from the latch mechanism and the latch mechanism is operated to release the latch in the manner hereinbefore described. The hoist is then operated to lower the receptacle 17 to a position such as indicated in dotted lines in Fig. 1. When in such lowered or dumping position the splongy ill-smelling refuse in theliottom of t e receptacle 17 may, by

reason of the wide open ho per-like mout of ,t e mcegitucle, be simp y raked into a. 0., which travels on a track 81 receptacle 17. As soon as the receptacle is thoroughly cleaned, it is again hoisted by m'ans of the hoist bars 56,

'with respect to aspect into operative relation with respect to the fixed cover and the acid lfscflrsry operation re eated.

e above invention as hereinbcfore set forth is embodied in a particular form or construction but me be variously embodied within the scope otlthc claims iercinaftcr made. V

I claim:

1. In an acid rcgencrator, in combination: a fixed lid; and a hopper-mounted recptacle mounted beneath and movable toward and from said lid into and out of position for liaiciig closed thereby; substantia ly as speci- 2. In an acid regenerator, in combination: a fixed lid; and a regenerative receptacle having a mouth substantially unrestricted the interior of the receptacle, said receptacle bein fulcrumed on an axis beneath said fixed lid, so as to be tiltable into and out of position for being closed thereby; substantially as specified.

3. In an acid regenerator, in combination: a. fixed lid; fluid-conducting means connected with said fixed lid; and a regenerative receptacle having a mouth substantially unrestricted with respect to the interior of the receptacle, said receptacle being tulcrumed on an axis beneath said fixed lid, so as to he tiltable into and out of position for being closed thereby; substantially as specified.

4. In an acid regenerator, in combination: a fixed lid; 11 regenerative receptacle havinp a mouth substantially unrestricted wit) respect to the interior of the receptacle, said receptacle being mounted beneath and morable toward and from the fixed lid intoand out of sition for being closed thereby; and releasa le means for retaining said receptacle in closed relation with res not to said fixed lid; substantially as speci ed.-

' 5. In an acid rcgcnerator, in combination:

a fixed lid; :1 regenerative icceptacle having a mouth substantially unrestircted with respect to the interior of the receptacle, said reco tacle beinr fulcrumed on an axis benealiii said fixe lid, so as to he tiltnblc into and out of position for being closed thereby and means for hoisting and loweri said receptacle on its axis; substantiu ly as specified.

6. In an acid regencrator, in combination: u. fixed lid; :1. regencmtive receptacle having a mouth substantially unrestricted with reto the interior of the receptacle, said twcle being fulcrumod on an axis befixed lid, so as to be tiltable into recap neath said and out of sition for being closed theres as tools in closed relation with respect to said fixed-lid; and means for hoistin lowering said receptacle on its axis; so antially as specified. A

7. In an acid regenerator, in combination: a fixed hd; c sludge-supply utnnd a vapor pipe connected with sai fixed lid; a hopper-mouthed sludge boiler rece tacle fulcrumed on an axis beneath and ti table toward and from said fixed lid; releasable means for retaining said receptacle in closed relation with respect to said fixed lid;-and means for hoisting and lowering said repicpltacle on its axis; substantially as specie e a fixed lid; a slugeau ply spout and a rapor pipe connec '-witi;said-fixed lid; a hopper-mouthed sludge holler .rece tools in crnrned on an axis beneath and in table toward and from said fixedlid; controlled drain mounted in I said receptacle; releasableineans for retaining said receptacle in closed relation with respect to said fixed lid; and means for hoisting and lowering said receptacle on its axis; substantially as specified.

9. A dumpin receptacle apparatus, comprising, in corn ination: afixed lid, and a and 8. In an acid regeneration, in combinationi' hopper-mouthed dumping receptacle mounted beneath and said lid into open position and into position for being closed tially as specified. I

10. In an acid regsncrator, in combination: a fixed lid, a hopper-mouthed receptncle mounted beneath and movable toward and from said fixed lid; and means connected with said fixed lid for supplying to the receptacle the material to e treated ifindsaid receptacle; substantially as speci- 11. A dumping receptacle apparatus, comprising, in combination: a fixed lid, and a dumpinf receptacle havin a mouth substantial y unrestricted wi respect to the interior of the receptacle, said rece tacle being mounted beneath and more is inde )endently of said lid into open pos'tion and mto position for being closed by said fixed lid, substantially as specified.

Signed in the presence of two subscribing Norman H. WANDALE, W. V. Bmcxmnn.

by said fixed lid, substani movable independently of Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,462,194. granted January 3,

1922, upon the application ul Julm 1. Thompson, of Pittsburgh, Pennsylvania,

for an improvement in Acid Rugcnui'uturs." errors appear in the printed speci fication requiring (xn'rcrrtiun 11 f'llliNSI Page &, line 11. claim 1, for the words hopper-nmuntell rec aim-1v rrzul lmpjr/ir-mnulbed receptacle; same page, line 16, claim 5, for the misspelled \mnl unrestircted read unrestricted; and that the said Letters Patent should he read with these corrections therein that, the same may conform to the recnrrl hf the vase n the Patent Office.

Signed and sealed this 27th day of June. A. D., 1922.

[sun] KARL F ENNING,

Acting Commissioner of Patents. 

